move gsm_cbfn to gsm_subscriber.h, the only user
(with two less line feeds)
Change-Id: I375e5b021e643f6b1986ea35ebaf3a6d60e189f5
diff --git a/include/osmocom/msc/gsm_subscriber.h b/include/osmocom/msc/gsm_subscriber.h
index f8d8ef0..2051067 100644
--- a/include/osmocom/msc/gsm_subscriber.h
+++ b/include/osmocom/msc/gsm_subscriber.h
@@ -9,6 +9,10 @@
#include <osmocom/msc/gsm_data.h>
struct ran_conn;
+struct msgb;
+
+typedef int gsm_cbfn(unsigned int hooknum, unsigned int event, struct msgb *msg,
+ void *data, void *param);
/*
* Struct for pending channel requests. This is managed in the